Ventilator opener



Jan. 1, 1929.

J. 1.. NIELSEN VENTILATOR OPENER Filed July 15, 1927 ATTORNEY.

Patented Jan. 1, 1929.

Warren s 'rnrss P'A'l (DE-F16 E...

VENTILATOR. OPENER"...

Application filed July 13,

My invention relates to a new and useful improvement in a ventilator opener adapted for;use on ventilatingopenings in which a fan is usedfor setting upcirculation and I bringingiabout'the desired ventilation. The invention is usedparticularly in rooms, such as kitchens and the like, Where it is desired tliatthe foul air, odors, andivapors arising in the; room, ma Q be expelled therefrom.

When these ventiliitorsare installed'in the manner nowtpractis'ed-the motor for driving the ventilator and the fan of the ventilator are all 1 exposed, and present an unseemly appearance particularly in a well appointed room. Inorderfto close communication of the room with thejoutside' atmosphere a shutter arrangement is generally constructed atthe outside of'the wall and this shutter arrangement, when,closed,'.aiiords the only 2 protectionofith'e. interior, of the room from the exterior, whichein severely cold weather proves. insufiicientl In .thepresent invention it is an object to provide an arrangement whereby. the ventil atingfan andYitsoperatingmechanism may be," when not in; use, entirely concealed so thatithe appearance of'the room will'not'be marred by. theexposure' of"the-ventilating apparatus. 7

It is another object ofthe invention to provide aclosure for the recess in which theventilating fan andfits operating parts are enclosed so that protection from the outside atmosphere may be providcdin additionto the usual shutters. l

Another object of" the invention is the provision in a ventilating apparatus o'l this class of" shutters cooperating with a door adaptedto be opened and'closed synchronously: with the door and with a; single operation.

Another object of the invention the provision of apparatus for oonnecting the door with the shutter mechanism so that the opening and'closing of one .will ei'l'ect the opening and closing of-the: other. 7 Otherobjects will'appea-r hereinafter.

The invention consists in the combination and arrangement of parts hereinafter de- I scribed and claimed.

The. invention willbe best understood by a reference to the accompanying drawings which form a part of this specification and in which,

Fig. 1 is a fragmentary elevational View of the invention taken from the inside show- 1927. Serial N0..205345.

ing the, invention applied-with the shutter open.

Fig. 3' is-a'view taken on substantially line si -3 of Fig. 21'

Fig. 4 is a view taken on substantially line 4l'4eof Fig. 3.: p

Fig. 5 is a fragmentaryexterior elevational view with parts broken away and" parts shown'in section. f

Fig. 6 is a fragmentary. sectionalview taken on substantially line 6"6"o fFig.. 2;

Fig. 7 is a viewsimilar to Fig.2"showing a modified :form' of the invention;

In the drawings I have illustrated the invention mounted in an opening lLformed 1n the wall 12. The. invention comprises a frame 13 which is adapted' for positioning in the opening 11 andwhich'is provided with the inwardly positioned frame'M-upon which is hingedly mounted thedooror "closure 15. Mounted in the frame l'lis a'plate 16. preferably formed from metal-{andwhich carries the channel 17.; in whicn the blades of the fan 18' rotate. Thisfpl'ate 16;;with thechannel 17'and thefan .18, is.of"the usual typeof" structure inventilating fan,

and since the same-in itselfiforms. no part of "the invention it/vlls not.,shown'infldetaili,

A motor is customarily' 'used for" driving the fan 18; mounted on the rods orv pintle's 20' toserve as a' closure for the openinginthe frame 14. Each" oiithese shutters 19is, as shown in 7 full lines inv Fig.2, connected by; the arcuate arm. 21 pivotally to. a connecting bar. 22 which carries, a, pin. 22:, engaging in the notch or slotv 23 formediin the arm 24 of'the bell jcranlgjth e other arm .QISTtherof, projectingthrough a slot 26f6rmediin the, bracket; 27., This bracket 27 V is. provided'Qwith a,neck ,27, having a groove 2 7,' the neck being adapted to ride in the space 28 between, the guide strips 29 and 30'. An arcuate arm 31 is pivotally connected at one end to the brack'eti27'and at-its opposite end to the bracket 32 which is fixedlyzmounted upon the door or closure 15'. I g V In operation when the mechanism is assembledin the frame. 14; and "the'door '15; is

Fig. 2 is a View taken on substantially line The shutters 19' are swingably swung'to open position, as shown-in ftill lines in Fig. 2, the shutters will be moved to open position, as shown in full lines in Fig. 2. When the door is moved to closed position the arm 25 will move inwardly to the position shown in dotted lines in. Fig. and the shutters will be moved to closed position, as shown in dotted lines in Fig. 2. The thickness of the wall is generally sufficient to provide a housing for accomn'iodating the fan and operating mechanism, and it will be observed from the description given that upon the closure of the door 15, the fan and its operating mechanism will be concealed from view, the closure and the shutters 19 serving to conceal this mechanism, The movement of the shutters to open position 15 a simple and easy operation being performed simultaneously with the movement of the door 15. c

In Fig. 7 I have shown a modified form of the invention in wl'lichthe door 15 swings downwardly instead of laterally, and is connected by the arms 31 to the bracket 27, this bracket being guided as already described for the bracket 27.

It is obvious that changes may be made in the present invention either in the method of installing, the method. of swinging the door or of connecting the various parts, and it is intended to embrace in this specification such changes and variations as come within the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A device of the class described adapted for use with a wall opening having a ventilator fan mounted therein, comprising: a swingably mounted closure for the inner side of said opening; swingably mounted shutters for closing the outer side of said opening; a vertically extending bar; means for pivotally connecting each of said shutters to said bar; a bell crank having one end bifurcated; a pin on said barfor engaging between the bifurcations of said bell crank, said bell crank being pivoted on said wall in said opening; and means for connecting the opposite end of said bell crank to said door, the opening and closing of said door effecting a swingable movement of said bell crank alternately in opposite directions for moving said shutters alternately to open and closed position.

2. A device of the class described adapted for use with a wall. having an opening formed therein, comprising: a swingably mounted closure for the inner side of said opening swingably mounted shutters for closing the outer side of said opening; a substantially L-shapcd bar pivotally mounted on said wall in said opening; a bar for connecting said shutters together and adapted upon vertical movement for swinging said shutters to open and closed position dependent upon the direction of movement of said bar; a pin projecting outwardly iroi one face of said bar and adapted to engage between bifurcations formed in one end of said L-shaped member; a bracket; guide members'for mounting said bracket on said wall in slidable relation thereto, said bracket having an opening therein for the reception of the opposite end of said L-shaped memher; and means for connecting said bracket to said swingably mounted closure, the movement of said door to open and closed position effecting a slidable movement of said bracket. V

3. A device of the class described adapted for use with a wall having an opening formed therein comprising: a swingably mounted closure for the inner side of said opening; swingably mounted shutters for closing the outer side of said opening; a substantially L-shaped bar pivotally moiuited on said wall in said opening; a bar for connecting said shutters together and adapted upon vertical movement for swinging said shutters to open and closed position dependent upon the direction of movement of said bar; a pin projecting outwardly from one face of said bar and adapted to engage between bifurcations formed in one end of said L-shaped member; a bracket; guide members for mounting said bracket on said wall in slidable relation thereto, said bracket having an opening therein for the reception of the opposite end of said L-shaped member; and an arcuate arm pivotally connected at one end to said bracketand at its opposite end to the inner surface of said closure.

4. A device of the class described adapted for use with a wall opening having a ventilator fan mounted therein, comprising: a swingably mounted closure for the inner side of said opening; swingably mounted shut ters for closing the outer side of said open ing; a vertically extending bar; means for pivotally connecting each of said shutters to said bar; a bell crank pivoted on said wall in said opening; means for connecting one end of said bell crank to said bar pivotally; means for connecting the opposite end of said bell crank to said door, the opening and closing of said. door effecting a swing able movement of said bell crank alternatelyin opposite directions for moving said shutters alternately to open and closed position.

In testimony whereof I have signed the foregoing specification.

Jens L. NIELSEN. 

